#!/bin/bash
#
# Copyright (c) 2014      Artem Polyakov <artpol84@gmail.com>
# $COPYRIGHT$
#
# Additional copyrights may follow
#
# $HEADER$

#####################################################################
# Evaluate a floating point number expression.

if [ -z "$1" ] || [ -z "$2" ]; then
    echo "Need the name of a timing file and the output file"
    exit 0
fi

initfile=$1
postfile=$2

# 1. Filter OPAL_TRACE entrieas only
#    and put the timestamp to the first place
#.2. Sort considering that we dealing with
#    floating point numbers
# 3. Return to initial field order and count relative fields
cat $initfile | \
awk 'BEGIN { FPAT = "([^ ]+)|(\"[^\"]+\")" }
{
    if( $0 ~ /\[OPAL_TRACE\]/ ){
        x = $NF
        $NF = $1
        $1 = x
        print $0
    }
}' | sort --general-numeric-sort | \
awk 'BEGIN {
    FPAT = "([^ ]+)|(\"[^\"]+\")"
    first = 0
    prev = 0
}
{
    if( first == 0 ){
	first = $1
	prev = $1
    }
    x = $1
    $1 = $NF
    $NF = x
    rel_to_first = x - first
    rel_to_prev = x - prev
    prev = x
    print $0, " ", rel_to_prev, " ", rel_to_first
}' > $postfile





